Oil burner



,ing isa specification;

Patented Sept. 18, 1923.

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JOHNSON ID.. LAlfl'GrS'l0N, OF BIRMINGHAM, ALABAM'A.

oI L BURNER.

Application fild M3I0h-29p1922U Serial No. 547,600.

To all whomz't m'ay- 00720670'L11'f' Be ittknownzthat I, JOHNSON-D.LANGS- 'roN,a citizen ofthe United States, and a resident of Birmingham,in the county of Jefferson and "State-of Alabama, haveinvented certainnew and :useful Improve- "ments in Oil B rners,"of which the follow-The. principal object of this invention is toprovide 'an oilburner-adapted to be inserted into any existing cooking stove, rangefrom cooling currents of cold air.

Another object is to so construct the superheating bowl that it willencase and. protect the superheating coil from cold a1r currents, and VV A further object is to provide a new and improved burner that willgenerate a high degree of heat with a smallconsumptlon of fuel.

further objects as will hereinafter be apparent to those skilledin theart to wh1eh this appertains, the invention consists III theconstruction, combination and arrangement'of parts herein specificallydescribed and illustrated in the accompanying drawings, wherein is showna preferredembodimerit of the invention, but it is to be understood thatchanges, variations and modifications may be resorted to which fallwithin the scope of the claims hereunto appended.

In the drawings forming a portion of this specification Fig. 1 is aburner. I Fig. 2 is a section on the line 2-2 of Fig. 1 and j Fig. 3 isa section on the line 33 of Fi .1. V

is shown in the drawings, an air circulating drum 10 is provided with aplurahtyof lugs 11 which are adapted to engage with and support anannular outwardly pro ect-- ing flange 12 formed upon the upper part ofa superheating bowl 13 wh ch as shown is preferably of a semi-sphericalcontour. A fuel feed pipe 14,'having a cut ofi valve 14; is formed intoan inverted U shaped portion15 upon the horizontal reach 16 of plan viewof my improved 'For the accomplishment of these and such which 'issecured a. deflector plate 17 the upper portion of the circulating drumpreferably beingslotteda's at 18 to engage the lower ends of thevertical port-ions of the U.

.The feedpipe terminates adjacent the U portion in an inwardly directedbend 19 to :which is secured one end of a helically wound superheatingand generating coil 20, theother end of which coil is curved downwardlyaround the inner lower surface of the bowl 13 and then upwardly throughthe centre of the coil terminating in a fuel nozzle 21, the axis ofwhichis in alignment with the center of the deflector plate 17. Theplate 17 is preferably provided with a series of lugs 17 to preventwarping or buckling.

The operation of the burner is as follows:

A small quantity of fuel is allowed to fioW into the super-heating bowl13 in the usual manner and upon being ignited it will heat thesuperheating coil 20 to a sufficient temperature to volatilize the fuelwhich will be projected against thedeflector plate 17 where it will beignited. The air supply will flow upwardly through the annular spacebetween the air drum and superheating bowl and due to the presence ofthe superheating bowl, there will not be a sufiicient supply of oxygento permit the combustion of the fuel until it strikes the deflectorplate, the intervening space between the fuel nozzle 21 and thedeflectorforining a neutral zone. 1

As the superheating bowl completely oncases the superheating coil on itslower side, the cool air aupply is prevented from contacting with thesuper-heating coil and cooling it. It will. thus be seen that a. higherworking "temperature of the coil will be maintained and because of thearrangement whereby the fuel is prevented from igniting until it strikesthe deflector plate, a greater efficiency of operation is obtained dueto the expansion of the fuel jet as it passes through the neutral zoneand the consequent breaking up of the fuel particles. Again due to thepresence of the feed pipe 14-16 over the flame, the fuel will receive apreheating before it reaches the super-heating Having thus described myinvention what I claim as new and desire to secure by Letters Patent,is:

1. In a burner, an air drum, a superheating coil, terminating in a fuelnozzle, a defiector plate spaced from said nozzle. a generating bowlpartiallyencasing said coil,

said bowl and coil spaced from andbelow said deflector within said airdrum to deflect the air supply currents and define a. neutral zonewhereby the combustion of fuel, will be prevented until said fuelreaches said deflector plate.

2. In a burner, an air drum, a superheating coil .IllOlll'ltQCl withinsaid air drum, a feed pipe connected with said superheating coil,a-defiector platesupported by said feed pipe, a generator bowlconstructed and arranged to partially encase said coil and preventcontact of the cool air current with said coil and a portion of saidfeed pipe passing through the flame region whereby a preheating of thefuel is obtained before it reaches the superheating coil.

3. An oil burner comprising an air drum,

7 said drum provided with means to support a a feed pipe, asuper-heating coil having one of its ends attached to said feed pipe, afuel nozzle secured on the other end of said coil and a preheating bowlspaced from said drum to allow a passage for the air supply between saidbowl and drum said bowl encooling of said coil by said air supply.

Signed at Birmingham, in the county of Jefferson and State of Alabama,this 13th day of March A. D. 1922.

JOHNSOND. LANGSTON.

casing the lower side of said coil to prevent--

